# kb

id: random-number-generator-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RNG-0.md
category: reference
title: Random Number Generator - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RNG
date_saved: 2026-05-05T05:41:56.298429+00:00
instance: kb-cron
parent: random-number-generator-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RNG#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RNG#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: random-number-generator-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RNG-1.md
category: reference
title: Random Number Generator - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RNG
date_saved: 2026-05-05T05:41:56.298429+00:00
instance: kb-cron
parent: random-number-generator-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Mar 20, 2026 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RNG/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rng/index.md?plain=1 "Folder: en-us/glossary/rng \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRNG&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frng%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRNG%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frng%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2Fc8522f47d8123fe529f39851b13b9fc01345ffbf%0A*+Document+last+modified%3A+2026-03-20T22%3A44%3A29.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rss-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RSS-0.md
category: reference
title: RSS - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RSS
date_saved: 2026-05-05T05:41:59.083530+00:00
instance: kb-cron
parent: rss-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RSS#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RSS#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rss-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RSS-1.md
category: reference
title: RSS - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RSS
date_saved: 2026-05-05T05:41:59.083530+00:00
instance: kb-cron
parent: rss-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RSS/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rss/index.md?plain=1 "Folder: en-us/glossary/rss \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRSS&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frss%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRSS%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frss%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rss-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RSS-2.md
category: reference
title: RSS - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RSS
date_saved: 2026-05-05T05:41:59.083530+00:00
instance: kb-cron
parent: rss-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. _[RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS)_ 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: rtcp-rtp-control-protocol-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RTCP-0.md
category: reference
title: RTCP (RTP Control Protocol) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTCP
date_saved: 2026-05-05T05:42:01.433512+00:00
instance: kb-cron
parent: rtcp-rtp-control-protocol-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RTCP#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RTCP#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rtcp-rtp-control-protocol-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RTCP-1.md
category: reference
title: RTCP (RTP Control Protocol) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTCP
date_saved: 2026-05-05T05:42:01.433512+00:00
instance: kb-cron
parent: rtcp-rtp-control-protocol-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RTCP/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rtcp/index.md?plain=1 "Folder: en-us/glossary/rtcp \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTCP&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frtcp%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTCP%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frtcp%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rtcp-rtp-control-protocol-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RTCP-2.md
category: reference
title: RTCP (RTP Control Protocol) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTCP
date_saved: 2026-05-05T05:42:01.433512+00:00
instance: kb-cron
parent: rtcp-rtp-control-protocol-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. _[RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP)_ 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: rtf-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RTF-0.md
category: reference
title: RTF - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTF
date_saved: 2026-05-05T05:42:04.029125+00:00
instance: kb-cron
parent: rtf-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RTF#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RTF#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rtf-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RTF-1.md
category: reference
title: RTF - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTF
date_saved: 2026-05-05T05:42:04.029125+00:00
instance: kb-cron
parent: rtf-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RTF/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rtf/index.md?plain=1 "Folder: en-us/glossary/rtf \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTF&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frtf%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTF%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frtf%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rtf-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RTF-2.md
category: reference
title: RTF - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTF
date_saved: 2026-05-05T05:42:04.029125+00:00
instance: kb-cron
parent: rtf-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. _[RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF)_ 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: rtl-right-to-left-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RTL-0.md
category: reference
title: RTL (Right to Left) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTL
date_saved: 2026-05-05T05:42:06.630761+00:00
instance: kb-cron
parent: rtl-right-to-left-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RTL#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RTL#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rtl-right-to-left-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RTL-1.md
category: reference
title: RTL (Right to Left) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTL
date_saved: 2026-05-05T05:42:06.630761+00:00
instance: kb-cron
parent: rtl-right-to-left-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RTL/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rtl/index.md?plain=1 "Folder: en-us/glossary/rtl \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTL&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frtl%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTL%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frtl%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rtl-right-to-left-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RTL-2.md
category: reference
title: RTL (Right to Left) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTL
date_saved: 2026-05-05T05:42:06.630761+00:00
instance: kb-cron
parent: rtl-right-to-left-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. _[RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL)_ 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RTP-0.md
category: reference
title: RTP (Real-time Transport Protocol) and SRTP (Secure RTP) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTP
date_saved: 2026-05-05T05:42:08.989291+00:00
instance: kb-cron
parent: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RTP#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RTP#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RTP-1.md
category: reference
title: RTP (Real-time Transport Protocol) and SRTP (Secure RTP) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTP
date_saved: 2026-05-05T05:42:08.989291+00:00
instance: kb-cron
parent: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RTP/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rtp/index.md?plain=1 "Folder: en-us/glossary/rtp \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTP&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frtp%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTP%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frtp%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RTP-2.md
category: reference
title: RTP (Real-time Transport Protocol) and SRTP (Secure RTP) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTP
date_saved: 2026-05-05T05:42:08.989291+00:00
instance: kb-cron
parent: rtp-real-time-transport-protocol-and-srtp-secure-rtp-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. _[RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP)_ 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/RTSP-0.md
category: reference
title: RTSP: Real-time streaming protocol - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTSP
date_saved: 2026-05-05T05:42:11.431088+00:00
instance: kb-cron
parent: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/RTSP#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/RTSP#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/RTSP-1.md
category: reference
title: RTSP: Real-time streaming protocol - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTSP
date_saved: 2026-05-05T05:42:11.431088+00:00
instance: kb-cron
parent: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/RTSP/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rtsp/index.md?plain=1 "Folder: en-us/glossary/rtsp \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTSP&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frtsp%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRTSP%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frtsp%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/RTSP-2.md
category: reference
title: RTSP: Real-time streaming protocol - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/RTSP
date_saved: 2026-05-05T05:42:11.431088+00:00
instance: kb-cron
parent: rtsp-real-time-streaming-protocol-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. _[RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP)_ 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: raster-image-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Raster_image-0.md
category: reference
title: Raster image - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Raster_image
date_saved: 2026-05-05T05:42:14.055358+00:00
instance: kb-cron
parent: raster-image-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Raster_image#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Raster_image#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: raster-image-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Raster_image-1.md
category: reference
title: Raster image - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Raster_image
date_saved: 2026-05-05T05:42:14.055358+00:00
instance: kb-cron
parent: raster-image-glossary-mdn-20260505-0
summary:
# Raster image A **_raster image_** is an image file defined as a grid of pixels. They're also referred to as _bitmaps_. Common raster image formats on the Web are [JPEG](https://developer.mozilla.org/en-US/docs/Glossary/JPEG), [PNG](https://developer.mozilla.org/en-US/docs/Glossary/PNG), [GIF](https://developer.mozilla.org/en-US/docs/Glossary/GIF), and [ICO](https://en.wikipedia.org/wiki/ICO_\(file_format\)). Raster image files usually contain one set of dimensions, but the ICO and CUR formats, used for favicons and [CSS cursor images](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/cursor), can contain multiple sizes. ## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Oct 30, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Raster_image/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/raster_image/index.md?plain=1 "Folder: en-us/glossary/raster_image \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRaster_image&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Fraster_image%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRaster_image%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Fraster_image%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2d78abb3e793352e24e976ce0e68c08d817bd7f3%0A*+Document+last+modified%3A+2025-10-30T16%3A59%3A53.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language


id: raster-image-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Raster_image-2.md
category: reference
title: Raster image - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Raster_image
date_saved: 2026-05-05T05:42:14.055358+00:00
instance: kb-cron
parent: raster-image-glossary-mdn-20260505-0
summary:
[Property (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Property/JavaScript) 397. [Protocol](https://developer.mozilla.org/en-US/docs/Glossary/Protocol) 398. [Prototype](https://developer.mozilla.org/en-US/docs/Glossary/Prototype) 399. [Prototype-based programming](https://developer.mozilla.org/en-US/docs/Glossary/Prototype-based_programming) 400. [Proxy server](https://developer.mozilla.org/en-US/docs/Glossary/Proxy_server) 401. [Pseudo-class](https://developer.mozilla.org/en-US/docs/Glossary/Pseudo-class) 402. [Pseudo-element](https://developer.mozilla.org/en-US/docs/Glossary/Pseudo-element) 403. [Pseudocode](https://developer.mozilla.org/en-US/docs/Glossary/Pseudocode) 404. [Public-key cryptography](https://developer.mozilla.org/en-US/docs/Glossary/Public-key_cryptography) 405. [Python](https://developer.mozilla.org/en-US/docs/Glossary/Python) 406. [Quality values](https://developer.mozilla.org/en-US/docs/Glossary/Quality_values) 407. [Quaternion](https://developer.mozilla.org/en-US/docs/Glossary/Quaternion) 408. [QUIC](https://developer.mozilla.org/en-US/docs/Glossary/QUIC) 409. [RAIL](https://developer.mozilla.org/en-US/docs/Glossary/RAIL) 410. [Random Number Generator](https://developer.mozilla.org/en-US/docs/Glossary/RNG) 411. _[Raster image](https://developer.mozilla.org/en-US/docs/Glossary/Raster_image)_ 412. [Rate limit](https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit) 413. [RDF](https://developer.mozilla.org/en-US/docs/Glossary/RDF) 414. [Reading order](https://developer.mozilla.org/en-US/docs/Glossary/Reading_order) 415. [Real User Monitoring (RUM)](https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring) 416. [Recursion](https://developer.mozilla.org/en-US/docs/Glossary/Recursion) 417. [Reflow](https://developer.mozilla.org/en-US/docs/Glossary/Reflow) 418. [Registrable domain](https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain) 419. [Regular expression](https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression) 420. [Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector)


id: rate-limit-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Rate_limit-0.md
category: reference
title: Rate limit - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit
date_saved: 2026-05-05T05:42:16.501877+00:00
instance: kb-cron
parent: rate-limit-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: rate-limit-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Rate_limit-1.md
category: reference
title: Rate limit - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit
date_saved: 2026-05-05T05:42:16.501877+00:00
instance: kb-cron
parent: rate-limit-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Rate_limit/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/rate_limit/index.md?plain=1 "Folder: en-us/glossary/rate_limit \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRate_limit&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frate_limit%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRate_limit%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frate_limit%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: reading-order-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Reading_order-0.md
category: reference
title: Reading order - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reading_order
date_saved: 2026-05-05T05:42:19.007990+00:00
instance: kb-cron
parent: reading-order-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Reading_order#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Reading_order#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: reading-order-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Reading_order-1.md
category: reference
title: Reading order - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reading_order
date_saved: 2026-05-05T05:42:19.007990+00:00
instance: kb-cron
parent: reading-order-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Nov 7, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Reading_order/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/reading_order/index.md?plain=1 "Folder: en-us/glossary/reading_order \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReading_order&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freading_order%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReading_order%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freading_order%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F85fccefc8066bd49af4ddafc12c77f35265c7e2d%0A*+Document+last+modified%3A+2025-11-07T15%3A58%3A06.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: real-user-monitoring-rum-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring-0.md
category: reference
title: Real User Monitoring (RUM) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring
date_saved: 2026-05-05T05:42:21.553688+00:00
instance: kb-cron
parent: real-user-monitoring-rum-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: real-user-monitoring-rum-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring-1.md
category: reference
title: Real User Monitoring (RUM) - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring
date_saved: 2026-05-05T05:42:21.553688+00:00
instance: kb-cron
parent: real-user-monitoring-rum-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 18, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Real_User_Monitoring/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/real_user_monitoring/index.md?plain=1 "Folder: en-us/glossary/real_user_monitoring \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReal_User_Monitoring&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freal_user_monitoring%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReal_User_Monitoring%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freal_user_monitoring%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F13839b2979cc244034ffb1fe243240778b0cd23f%0A*+Document+last+modified%3A+2025-07-18T15%3A04%3A24.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: recursion-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Recursion-0.md
category: reference
title: Recursion - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Recursion
date_saved: 2026-05-05T05:42:23.995580+00:00
instance: kb-cron
parent: recursion-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Recursion#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Recursion#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: recursion-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Recursion-1.md
category: reference
title: Recursion - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Recursion
date_saved: 2026-05-05T05:42:23.995580+00:00
instance: kb-cron
parent: recursion-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Dec 22, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Recursion/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/recursion/index.md?plain=1 "Folder: en-us/glossary/recursion \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRecursion&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frecursion%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRecursion%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frecursion%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2Fedcc5310efdcf36ca408ab3df5d5d4ba2f21cd4a%0A*+Document+last+modified%3A+2025-12-22T00%3A50%3A15.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: reflow-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Reflow-0.md
category: reference
title: Reflow - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reflow
date_saved: 2026-05-05T05:42:26.598358+00:00
instance: kb-cron
parent: reflow-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Reflow#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Reflow#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: reflow-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Reflow-1.md
category: reference
title: Reflow - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reflow
date_saved: 2026-05-05T05:42:26.598358+00:00
instance: kb-cron
parent: reflow-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Reflow/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/reflow/index.md?plain=1 "Folder: en-us/glossary/reflow \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReflow&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freflow%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReflow%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freflow%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: registrable-domain-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Registrable_domain-0.md
category: reference
title: Registrable domain - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain
date_saved: 2026-05-05T05:42:29.125952+00:00
instance: kb-cron
parent: registrable-domain-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: registrable-domain-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Registrable_domain-1.md
category: reference
title: Registrable domain - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain
date_saved: 2026-05-05T05:42:29.125952+00:00
instance: kb-cron
parent: registrable-domain-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jan 5, 2026 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Registrable_domain/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/registrable_domain/index.md?plain=1 "Folder: en-us/glossary/registrable_domain \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRegistrable_domain&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Fregistrable_domain%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRegistrable_domain%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Fregistrable_domain%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2Fd7a0ef33dfce20818a160557b5a72d6565cec254%0A*+Document+last+modified%3A+2026-01-05T06%3A52%3A54.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: regular-expression-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Regular_expression-0.md
category: reference
title: Regular expression - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression
date_saved: 2026-05-05T05:42:31.550745+00:00
instance: kb-cron
parent: regular-expression-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: regular-expression-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Regular_expression-1.md
category: reference
title: Regular expression - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression
date_saved: 2026-05-05T05:42:31.550745+00:00
instance: kb-cron
parent: regular-expression-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Regular_expression/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/regular_expression/index.md?plain=1 "Folder: en-us/glossary/regular_expression \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRegular_expression&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Fregular_expression%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRegular_expression%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Fregular_expression%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: relying-party-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Relying_party-0.md
category: reference
title: Relying party - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Relying_party
date_saved: 2026-05-05T05:42:34.143465+00:00
instance: kb-cron
parent: relying-party-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: relying-party-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Relying_party-1.md
category: reference
title: Relying party - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Relying_party
date_saved: 2026-05-05T05:42:34.143465+00:00
instance: kb-cron
parent: relying-party-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 25, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/relying_party/index.md?plain=1 "Folder: en-us/glossary/relying_party \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRelying_party&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frelying_party%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRelying_party%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frelying_party%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F8cd7f0fdcb2ea8d53ec7dae071eb2eb76bf5bfaf%0A*+Document+last+modified%3A+2025-07-25T01%3A03%3A58.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: relying-party-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Relying_party-2.md
category: reference
title: Relying party - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Relying_party
date_saved: 2026-05-05T05:42:34.143465+00:00
instance: kb-cron
parent: relying-party-glossary-mdn-20260505-0
summary:
_[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party)_ 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: render-blocking-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Render_blocking-0.md
category: reference
title: Render-blocking - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking
date_saved: 2026-05-05T05:42:36.503369+00:00
instance: kb-cron
parent: render-blocking-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: render-blocking-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Render_blocking-1.md
category: reference
title: Render-blocking - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking
date_saved: 2026-05-05T05:42:36.503369+00:00
instance: kb-cron
parent: render-blocking-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/render_blocking/index.md?plain=1 "Folder: en-us/glossary/render_blocking \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRender_blocking&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frender_blocking%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRender_blocking%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frender_blocking%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: render-blocking-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Render_blocking-2.md
category: reference
title: Render-blocking - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking
date_saved: 2026-05-05T05:42:36.503369+00:00
instance: kb-cron
parent: render-blocking-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. _[Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking)_ 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: repaint-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Repaint-0.md
category: reference
title: Repaint - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repaint
date_saved: 2026-05-05T05:42:38.846764+00:00
instance: kb-cron
parent: repaint-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Repaint#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Repaint#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: repaint-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Repaint-1.md
category: reference
title: Repaint - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repaint
date_saved: 2026-05-05T05:42:38.846764+00:00
instance: kb-cron
parent: repaint-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Repaint/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/repaint/index.md?plain=1 "Folder: en-us/glossary/repaint \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepaint&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frepaint%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepaint%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frepaint%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: repaint-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Repaint-2.md
category: reference
title: Repaint - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repaint
date_saved: 2026-05-05T05:42:38.846764+00:00
instance: kb-cron
parent: repaint-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. _[Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint)_ 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: replaced-elements-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Replaced_elements-0.md
category: reference
title: Replaced elements - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements
date_saved: 2026-05-05T05:42:41.580983+00:00
instance: kb-cron
parent: replaced-elements-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: replaced-elements-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Replaced_elements-1.md
category: reference
title: Replaced elements - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements
date_saved: 2026-05-05T05:42:41.580983+00:00
instance: kb-cron
parent: replaced-elements-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/replaced_elements/index.md?plain=1 "Folder: en-us/glossary/replaced_elements \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReplaced_elements&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freplaced_elements%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReplaced_elements%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freplaced_elements%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: replaced-elements-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Replaced_elements-2.md
category: reference
title: Replaced elements - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements
date_saved: 2026-05-05T05:42:41.580983+00:00
instance: kb-cron
parent: replaced-elements-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. _[Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements)_ 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: replay-attack-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Replay_attack-0.md
category: reference
title: Replay attack - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack
date_saved: 2026-05-05T05:42:44.172313+00:00
instance: kb-cron
parent: replay-attack-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: replay-attack-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Replay_attack-1.md
category: reference
title: Replay attack - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack
date_saved: 2026-05-05T05:42:44.172313+00:00
instance: kb-cron
parent: replay-attack-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Dec 15, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/replay_attack/index.md?plain=1 "Folder: en-us/glossary/replay_attack \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReplay_attack&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freplay_attack%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReplay_attack%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freplay_attack%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2Fdc788bf0ea36cb1ebe809c82aaae2c77cb3e18c0%0A*+Document+last+modified%3A+2025-12-15T07%3A46%3A57.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: replay-attack-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Replay_attack-2.md
category: reference
title: Replay attack - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack
date_saved: 2026-05-05T05:42:44.172313+00:00
instance: kb-cron
parent: replay-attack-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. _[Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack)_ 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: repo-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Repo-0.md
category: reference
title: Repo - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repo
date_saved: 2026-05-05T05:42:46.649871+00:00
instance: kb-cron
parent: repo-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Repo#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Repo#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: repo-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Repo-1.md
category: reference
title: Repo - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repo
date_saved: 2026-05-05T05:42:46.649871+00:00
instance: kb-cron
parent: repo-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Repo/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/repo/index.md?plain=1 "Folder: en-us/glossary/repo \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepo&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frepo%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepo%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frepo%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: repo-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Repo-2.md
category: reference
title: Repo - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Repo
date_saved: 2026-05-05T05:42:46.649871+00:00
instance: kb-cron
parent: repo-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. _[Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo)_ 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: reporting-directive-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Reporting_directive-0.md
category: reference
title: Reporting directive - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive
date_saved: 2026-05-05T05:42:49.084700+00:00
instance: kb-cron
parent: reporting-directive-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: reporting-directive-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Reporting_directive-1.md
category: reference
title: Reporting directive - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive
date_saved: 2026-05-05T05:42:49.084700+00:00
instance: kb-cron
parent: reporting-directive-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/reporting_directive/index.md?plain=1 "Folder: en-us/glossary/reporting_directive \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReporting_directive&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Freporting_directive%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FReporting_directive%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Freporting_directive%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: reporting-directive-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Reporting_directive-2.md
category: reference
title: Reporting directive - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive
date_saved: 2026-05-05T05:42:49.084700+00:00
instance: kb-cron
parent: reporting-directive-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. _[Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive)_ 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: representation-header-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Representation_header-0.md
category: reference
title: Representation header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Representation_header
date_saved: 2026-05-05T05:42:51.537182+00:00
instance: kb-cron
parent: representation-header-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: representation-header-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Representation_header-1.md
category: reference
title: Representation header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Representation_header
date_saved: 2026-05-05T05:42:51.537182+00:00
instance: kb-cron
parent: representation-header-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/representation_header/index.md?plain=1 "Folder: en-us/glossary/representation_header \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepresentation_header&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frepresentation_header%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRepresentation_header%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frepresentation_header%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: representation-header-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Representation_header-2.md
category: reference
title: Representation header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Representation_header
date_saved: 2026-05-05T05:42:51.537182+00:00
instance: kb-cron
parent: representation-header-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. _[Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header)_ 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: request-header-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Request_header-0.md
category: reference
title: Request header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Request_header
date_saved: 2026-05-05T05:42:53.981590+00:00
instance: kb-cron
parent: request-header-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Request_header#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Request_header#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: request-header-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Request_header-1.md
category: reference
title: Request header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Request_header
date_saved: 2026-05-05T05:42:53.981590+00:00
instance: kb-cron
parent: request-header-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Request_header/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/request_header/index.md?plain=1 "Folder: en-us/glossary/request_header \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRequest_header&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Frequest_header%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FRequest_header%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Frequest_header%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: request-header-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Request_header-2.md
category: reference
title: Request header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Request_header
date_saved: 2026-05-05T05:42:53.981590+00:00
instance: kb-cron
parent: request-header-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. _[Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header)_ 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: resource-timing-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Resource_Timing-0.md
category: reference
title: Resource Timing - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing
date_saved: 2026-05-05T05:42:57.005140+00:00
instance: kb-cron
parent: resource-timing-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: resource-timing-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Resource_Timing-1.md
category: reference
title: Resource Timing - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing
date_saved: 2026-05-05T05:42:57.005140+00:00
instance: kb-cron
parent: resource-timing-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 11, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/resource_timing/index.md?plain=1 "Folder: en-us/glossary/resource_timing \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FResource_Timing&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Fresource_timing%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FResource_Timing%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Fresource_timing%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F2547f622337d6cbf8c3794776b17ed377d6aad57%0A*+Document+last+modified%3A+2025-07-11T14%3A45%3A59.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: resource-timing-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Resource_Timing-2.md
category: reference
title: Resource Timing - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing
date_saved: 2026-05-05T05:42:57.005140+00:00
instance: kb-cron
parent: resource-timing-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. _[Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing)_ 430. [Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header) 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


id: response-header-glossary-mdn-20260505-0
file: data/developer.mozilla.org/en-US/docs/Glossary/Response_header-0.md
category: reference
title: Response header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Response_header
date_saved: 2026-05-05T05:42:59.418956+00:00
instance: kb-cron
parent: response-header-glossary-mdn-20260505-0
summary:
* [Skip to main content](https://developer.mozilla.org/en-US/docs/Glossary/Response_header#content) * [Skip to search](https://developer.mozilla.org/en-US/docs/Glossary/Response_header#search) [ MDN ](https://developer.mozilla.org/en-US/) HTML [HTML: Markup language](https://developer.mozilla.org/en-US/docs/Web/HTML) HTML reference * [Elements](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Elements) * [Global attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Global_attributes) * [Attributes](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference/Attributes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Reference "See all HTML references") HTML guides * [Responsive images](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Responsive_images) * [HTML cheatsheet](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Cheatsheet) * [Date & time formats](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides/Date_and_time_formats) * [See all…](https://developer.mozilla.org/en-US/docs/Web/HTML/Guides "See all HTML guides") Markup languages * [SVG](https://developer.mozilla.org/en-US/docs/Web/SVG) * [MathML](https://developer.mozilla.org/en-US/docs/Web/MathML) * [XML](https://developer.mozilla.org/en-US/docs/Web/XML) CSS [CSS: Styling language](https://developer.mozilla.org/en-US/docs/Web/CSS) CSS reference * [Properties](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties) * [Selectors](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors) * [At-rules](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/At-rules) * [Values](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Values) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Reference "See all CSS references") CSS guides * [Box model](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Box_model/Introduction) * [Animations](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Animations/Using) * [Flexbox](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Flexible_box_layout/Basic_concepts) * [Colors](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides/Colors/Applying_color) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/Guides "See all CSS guides") Layout cookbook * [Column layouts](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Column_layouts) * [Centering an element](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Center_an_element) * [Card component](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook/Card) * [See all…](https://developer.mozilla.org/en-US/docs/Web/CSS/How_to/Layout_cookbook) JavaScriptJS [JavaScript: Scripting language](https://developer.mozilla.org/en-US/docs/Web/JavaScript) JS reference * [Standard built-in objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects) * [Expressions & operators](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators) * [Statements & declarations](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements) * [Functions](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference "See all JavaScript references") JS guides * [Control flow & error handing](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Control_flow_and_error_handling) * [Loops and iteration](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Loops_and_iteration) * [Working with objects](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects) * [Using classes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_classes) * [See all…](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide "See all JavaScript guides") Web APIs [Web APIs: Programming interfaces](https://developer.mozilla.org/en-US/docs/Web/API) Web API reference * [File system API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_API) * [Fetch API](https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API) * [Geolocation API](https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API) * [HTML DOM API](https://developer.mozilla.org/en-US/docs/Web/API/HTML_DOM_API) * [Push API](https://developer.mozilla.org/en-US/docs/Web/API/Push_API) * [Service worker API](https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API) * [See all…](https://developer.mozilla.org/en-US/docs/Web/API


id: response-header-glossary-mdn-20260505-1
file: data/developer.mozilla.org/en-US/docs/Glossary/Response_header-1.md
category: reference
title: Response header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Response_header
date_saved: 2026-05-05T05:42:59.418956+00:00
instance: kb-cron
parent: response-header-glossary-mdn-20260505-0
summary:
## Help improve MDN [Learn how to contribute](https://developer.mozilla.org/en-US/docs/MDN/Community/Getting_started) This page was last modified on Jul 28, 2025 by [MDN contributors](https://developer.mozilla.org/en-US/docs/Glossary/Response_header/contributors.txt). [View this page on GitHub](https://github.com/mdn/content/blob/main/files/en-us/glossary/response_header/index.md?plain=1 "Folder: en-us/glossary/response_header \(Opens in a new tab\)") • [Report a problem with this content](https://github.com/mdn/content/issues/new?template=page-report.yml&mdn-url=https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FResponse_header&metadata=%3C%21--+Do+not+make+changes+below+this+line+--%3E%0A%3Cdetails%3E%0A%3Csummary%3EPage+report+details%3C%2Fsummary%3E%0A%0A*+Folder%3A+%60en-us%2Fglossary%2Fresponse_header%60%0A*+MDN+URL%3A+https%3A%2F%2Fdeveloper.mozilla.org%2Fen-US%2Fdocs%2FGlossary%2FResponse_header%0A*+GitHub+URL%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fblob%2Fmain%2Ffiles%2Fen-us%2Fglossary%2Fresponse_header%2Findex.md%0A*+Last+commit%3A+https%3A%2F%2Fgithub.com%2Fmdn%2Fcontent%2Fcommit%2F099a15b4234071958980dcae0e122a7145fdbdfa%0A*+Document+last+modified%3A+2025-07-28T03%3A46%3A54.000Z%0A%0A%3C%2Fdetails%3E "This will take you to GitHub to file a new issue.") 1. [Glossary](https://developer.mozilla.org/en-US/docs/Glossary) 2. 1. [Abstraction](https://developer.mozilla.org/en-US/docs/Glossary/Abstraction) 2. [Accent](https://developer.mozilla.org/en-US/docs/Glossary/Accent) 3. [Accessibility](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility) 4. [Accessibility tree](https://developer.mozilla.org/en-US/docs/Glossary/Accessibility_tree) 5. [Accessible description](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_description) 6. [Accessible name](https://developer.mozilla.org/en-US/docs/Glossary/Accessible_name) 7. [Adobe Flash](https://developer.mozilla.org/en-US/docs/Glossary/Adobe_Flash) 8. [Advance measure](https://developer.mozilla.org/en-US/docs/Glossary/Advance_measure) 9. [Ajax](https://developer.mozilla.org/en-US/docs/Glossary/AJAX) 10. [Algorithm](https://developer.mozilla.org/en-US/docs/Glossary/Algorithm) 11. [Alignment container](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Container) 12. [Alignment subject](https://developer.mozilla.org/en-US/docs/Glossary/Alignment_Subject) 13. [Alpha (alpha channel)](https://developer.mozilla.org/en-US/docs/Glossary/Alpha) 14. [ALPN](https://developer.mozilla.org/en-US/docs/Glossary/ALPN) 15. [API](https://developer.mozilla.org/en-US/docs/Glossary/API) 16. [Apple Safari](https://developer.mozilla.org/en-US/docs/Glossary/Apple_Safari) 17. [Application context](https://developer.mozilla.org/en-US/docs/Glossary/Application_context) 18. [Argument](https://developer.mozilla.org/en-US/docs/Glossary/Argument) 19. [ARIA](https://developer.mozilla.org/en-US/docs/Glossary/ARIA) 20. [ARPA](https://developer.mozilla.org/en-US/docs/Glossary/ARPA) 21. [ARPANET](https://developer.mozilla.org/en-US/docs/Glossary/Arpanet) 22. [Array](https://developer.mozilla.org/en-US/docs/Glossary/Array) 23. [ASCII](https://developer.mozilla.org/en-US/docs/Glossary/ASCII) 24. [Aspect ratio](https://developer.mozilla.org/en-US/docs/Glossary/Aspect_ratio) 25. [Asynchronous](https://developer.mozilla.org/en-US/docs/Glossary/Asynchronous) 26. [ATAG](https://developer.mozilla.org/en-US/docs/Glossary/ATAG) 27. [Attribute](https://developer.mozilla.org/en-US/docs/Glossary/Attribute) 28. [Authentication](https://developer.mozilla.org/en-US/docs/Glossary/Authentication) 29. [Authenticator](https://developer.mozilla.org/en-US/docs/Glossary/Authenticator) 30. [Bandwidth](https://developer.mozilla.org/en-US/docs/Glossary/Bandwidth) 31. [Base64](https://developer.mozilla.org/en-US/docs/Glossary/Base64) 32. [Baseline](https://developer.mozilla.org/en-US/docs/Glossary/Baseline) 1. [Baseline (compatibility)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Compatibility) 2. [Baseline (typography)](https://developer.mozilla.org/en-US/docs/Glossary/Baseline/Typography) 33. [BCP 47 language tag](https://developer.mozilla.org/en-US/docs/Glossary/BCP_47_language_tag) 34. [Beacon](https://developer.mozilla.org/en-US/docs/Glossary/Beacon) 35. [Bézier curve](https://developer.mozilla.org/en-US/docs/Glossary/Bezier_curve) 36. [bfcache](https://developer.mozilla.org/en-US/docs/Glossary/bfcache) 37. [BiDi](https://developer.mozilla.org/en-US/docs/Glossary/BiDi) 38. [BigInt](https://developer.mozilla.org/en-US/docs/Glossary/BigInt) 39. [Binding](https://developer.mozilla.org/en-US/docs/Glossary/Binding) 40. [Bitwise flags](https://developer.mozilla.org/en-US/docs/Glossary/Bitwise_flags) 41. [Blink](https://developer.mozilla.org/en-US/docs/Glossary/Blink) 42. [blink element (<blink> tag)](https://developer.mozilla.org/en-US/docs/Glossary/blink_element) 43. [Block](https://developer.mozilla.org/en-US/docs/Glossary/Block) 1. [Block (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/Block/CSS) 2. [Block (scripting)](https://developer.mozilla.org/en-US/docs/Glossary/Block/Scripting) 44. [Block cipher mode of operation](https://developer.mozilla.org/en-US/docs/Glossary/Block_cipher_mode_of_operation) 45. [Block-level content](https://developer.mozilla.org/en-US/docs/Glossary/Block-level_content) 46. [Boolean](https://developer.mozilla.org/en-US/docs/Glossary/Boolean) 1. [Boolean (JavaScript)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/JavaScript) 2. [Boolean attribute (ARIA)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/ARIA) 3. [Boolean attribute (HTML)](https://developer.mozilla.org/en-US/docs/Glossary/Boolean/HTML) 47. [Bounding box](https://developer.mozilla.org/en-US/docs/Glossary/Bounding_box) 48. [Breadcrumb](https://developer.mozilla.org/en-US/docs/Glossary/Breadcrumb) 49. [Brotli


id: response-header-glossary-mdn-20260505-2
file: data/developer.mozilla.org/en-US/docs/Glossary/Response_header-2.md
category: reference
title: Response header - Glossary | MDN
tags: web, html, css, javascript, documentation
source_url: https://developer.mozilla.org/en-US/docs/Glossary/Response_header
date_saved: 2026-05-05T05:42:59.418956+00:00
instance: kb-cron
parent: response-header-glossary-mdn-20260505-0
summary:
[Relying party](https://developer.mozilla.org/en-US/docs/Glossary/Relying_party) 421. [Render-blocking](https://developer.mozilla.org/en-US/docs/Glossary/Render_blocking) 422. [Repaint](https://developer.mozilla.org/en-US/docs/Glossary/Repaint) 423. [Replaced elements](https://developer.mozilla.org/en-US/docs/Glossary/Replaced_elements) 424. [Replay attack](https://developer.mozilla.org/en-US/docs/Glossary/Replay_attack) 425. [Repo](https://developer.mozilla.org/en-US/docs/Glossary/Repo) 426. [Reporting directive](https://developer.mozilla.org/en-US/docs/Glossary/Reporting_directive) 427. [Representation header](https://developer.mozilla.org/en-US/docs/Glossary/Representation_header) 428. [Request header](https://developer.mozilla.org/en-US/docs/Glossary/Request_header) 429. [Resource Timing](https://developer.mozilla.org/en-US/docs/Glossary/Resource_Timing) 430. _[Response header](https://developer.mozilla.org/en-US/docs/Glossary/Response_header)_ 431. [Responsive Web Design (RWD)](https://developer.mozilla.org/en-US/docs/Glossary/Responsive_web_design) 432. [REST](https://developer.mozilla.org/en-US/docs/Glossary/REST) 433. [RGB](https://developer.mozilla.org/en-US/docs/Glossary/RGB) 434. [RIL](https://developer.mozilla.org/en-US/docs/Glossary/RIL) 435. [Robots.txt](https://developer.mozilla.org/en-US/docs/Glossary/Robots.txt) 436. [Round Trip Time (RTT)](https://developer.mozilla.org/en-US/docs/Glossary/Round_Trip_Time) 437. [Router](https://developer.mozilla.org/en-US/docs/Glossary/Router) 438. [RSS](https://developer.mozilla.org/en-US/docs/Glossary/RSS) 439. [Rsync](https://developer.mozilla.org/en-US/docs/Glossary/Rsync) 440. [RTCP (RTP Control Protocol)](https://developer.mozilla.org/en-US/docs/Glossary/RTCP) 441. [RTF](https://developer.mozilla.org/en-US/docs/Glossary/RTF) 442. [RTL (Right to Left)](https://developer.mozilla.org/en-US/docs/Glossary/RTL) 443. [RTP (Real-time Transport Protocol) and SRTP (Secure RTP)](https://developer.mozilla.org/en-US/docs/Glossary/RTP) 444. [RTSP: Real-time streaming protocol](https://developer.mozilla.org/en-US/docs/Glossary/RTSP) 445. [Ruby](https://developer.mozilla.org/en-US/docs/Glossary/Ruby) 446. [Safe](https://developer.mozilla.org/en-US/docs/Glossary/Safe) 1. [Safe (HTTP Methods)](https://developer.mozilla.org/en-US/docs/Glossary/Safe/HTTP) 447. [Salt](https://developer.mozilla.org/en-US/docs/Glossary/Salt) 448. [Same-origin policy](https://developer.mozilla.org/en-US/docs/Glossary/Same-origin_policy) 449. [SCM](https://developer.mozilla.org/en-US/docs/Glossary/SCM) 450. [Scope](https://developer.mozilla.org/en-US/docs/Glossary/Scope) 451. [Screen reader](https://developer.mozilla.org/en-US/docs/Glossary/Screen_reader) 452. [Script-supporting element](https://developer.mozilla.org/en-US/docs/Glossary/Script-supporting_element) 453. [Scroll boundary](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_boundary) 454. [Scroll chaining](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_chaining) 455. [Scroll container](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_container) 456. [Scroll snap](https://developer.mozilla.org/en-US/docs/Glossary/Scroll_snap) 457. [SCTP](https://developer.mozilla.org/en-US/docs/Glossary/SCTP) 458. [SDK (Software Development Kit)](https://developer.mozilla.org/en-US/docs/Glossary/SDK) 459. [SDP](https://developer.mozilla.org/en-US/docs/Glossary/SDP) 460. [Search engine](https://developer.mozilla.org/en-US/docs/Glossary/Search_engine) 461. [Secure context](https://developer.mozilla.org/en-US/docs/Glossary/Secure_Context) 462. [Secure Sockets Layer (SSL)](https://developer.mozilla.org/en-US/docs/Glossary/SSL) 463. [Selector (CSS)](https://developer.mozilla.org/en-US/docs/Glossary/CSS_Selector) 464. [Semantics](https://developer.mozilla.org/en-US/docs/Glossary/Semantics) 465. [SEO](https://developer.mozilla.org/en-US/docs/Glossary/SEO) 466. [Serializable object](https://developer.mozilla.org/en-US/docs/Glossary/Serializable_object) 467. [Serialization](https://developer.mozilla.org/en-US/docs/Glossary/Serialization) 468. [Server](https://developer.mozilla.org/en-US/docs/Glossary/Server) 469. [Server Timing](https://developer.mozilla.org/en-US/docs/Glossary/Server_Timing) 470. [Server-side rendering (SSR)](https://developer.mozilla.org/en-US/docs/Glossary/SSR) 471. [Session hijacking](https://developer.mozilla.org/en-US/docs/Glossary/Session_Hijacking) 472. [SGML](https://developer.mozilla.org/en-US/docs/Glossary/SGML) 473. [Shadow tree](https://developer.mozilla.org/en-US/docs/Glossary/Shadow_tree) 474. [Shallow copy](https://developer.mozilla.org/en-US/docs/Glossary/Shallow_copy) 475. [Shim](https://developer.mozilla.org/en-US/docs/Glossary/Shim) 476. [Signature](https://developer.mozilla.org/en-US/docs/Glossary/Signature) 1. [Signature (functions)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Function) 2. [Signature (security)](https://developer.mozilla.org/en-US/docs/Glossary/Signature/Security) 477. [SIMD](https://developer.mozilla.org/en-US/docs/Glossary/SIMD) 478. [SISD](https://developer.mozilla.org/en-US/docs/Glossary/SISD) 479. [Site](https://developer.mozilla.org/en-US/docs/Glossary/Site) 480. [Site map](https://developer.mozilla.org/en-US/docs/Glossary/Site_map) 481. [SLD](https://developer.mozilla.org/en-US/docs/Glossary/SLD) 482. [Sloppy mode](https://developer.mozilla.org/en-US/docs/Glossary/Sloppy_mode) 483. [Slug](https://developer.mozilla.org/en-US/docs/Glossary/Slug) 484. [Smoke test](https://developer.mozilla.org/en-US/docs/Glossary/Smoke_Test) 485. [SMPTE (Society of Motion


